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13221000132 = 2235918673729
BaseRepresentation
bin11000101000000100…
…00111001111000100
31021010101122101122120
430110002013033010
5204034034001012
610023523525540
7645425434614
oct142402071704
937111571576
1013221000132
115674a0109a
12268b8298b0
1313290cc702
148d5c56a44
15525a5858c
hex3140873c4

13221000132 has 24 divisors (see below), whose sum is σ = 31371866400. Its totient is φ = 4332304896.

The previous prime is 13221000131. The next prime is 13221000137. The reversal of 13221000132 is 23100012231.

It is not an unprimeable number, because it can be changed into a prime (13221000131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9336157 + ... + 9337572.

It is an arithmetic number, because the mean of its divisors is an integer number (1307161100).

Almost surely, 213221000132 is an apocalyptic number.

13221000132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13221000132 is an abundant number, since it is smaller than the sum of its proper divisors (18150866268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13221000132 is a wasteful number, since it uses less digits than its factorization.

13221000132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18673795 (or 18673793 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 13221000132 its reverse (23100012231), we get a palindrome (36321012363).

The spelling of 13221000132 in words is "thirteen billion, two hundred twenty-one million, one hundred thirty-two", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 59 118 177 236 354 708 18673729 37347458 56021187 74694916 112042374 224084748 1101750011 2203500022 3305250033 4407000044 6610500066 13221000132